DEFINE COLLOCGROUP (Define a collocation group)
Use this command to define a collocation group. A collocation group is a group of nodes or file spaces on a node whose data is collocated on a minimal number of sequential access volumes. Their data is collocated only if the storage pool definition is set to collocate by group (COLLOCATE=GROUP).
Privilege class
To issue this command, you must have system or unrestricted storage privilege.
Syntax
>>-DEFine COLLOCGroup--group_name-------------------------------> >--+-----------------------------+----------------------------->< '-DESCription--=--description-'
Parameters
- group_name
- Specifies the name of the collocation group name that you want to create. The maximum length of the name is 30 characters.
- DESCription
- Specifies a description of the collocation group. This parameter is optional. The maximum length of the description is 255 characters. Enclose the description in quotation marks if it contains any blank characters.
Define a collocation group
To define a node or file space collocation group named GROUP1, issue the following command:define collocgroup group1
Related commands
Command | Description |
---|---|
DEFINE COLLOCMEMBER | Adds a client node or file space to a collocation group. |
DEFINE STGPOOL | Defines a storage pool as a named collection of server storage media. |
DELETE COLLOCGROUP | Deletes a collocation group. |
DELETE COLLOCMEMBER | Deletes a client node or file space from a collocation group. |
MOVE NODEDATA | Moves data for one or more nodes, or a single node with selected file spaces. |
QUERY COLLOCGROUP | Displays information about collocation groups. |
QUERY NODE | Displays partial or complete information about one or more clients. |
QUERY NODEDATA | Displays information about the location and size of data for a client node. |
QUERY STGPOOL | Displays information about storage pools. |
REMOVE NODE | Removes a client from the list of registered nodes for a specific policy domain. |
UPDATE COLLOCGROUP | Updates the description of a collocation group. |
UPDATE STGPOOL | Changes the attributes of a storage pool. |